Textile device



a made of paper.

TEXTILE DEVICE Svend A. Petersen, Brooklyn, and Ho Chow, New York, N. Y., assignors to Celanese Corporation of America, New York, N. Y., a corporation of Delaware Application February 4, 1953, Serial No. 335,013

20 Claims. (Cl. 242-72) This invention relates to a textile device for use in yarn winding machinery, and relates more particularly to a mandrel for a yarn Winding machine on which a yarn package support is mounted for rotation.

In the winding of yarns on tubular yarn package supports, or tubes, it is customary to employ a mandrel rotatably mounted on a suitable support and provided with means for gripping the tube, which tube is generally A tube is placed on the mandrel and the gripping means thereof are moved into engagement with the tube to hold it firmly on the mandrel. After this loading or donning operation, the tube is rotated to wind yarn thereon by placing a driven rotating roller into contact with the outside of the tube and, subsequently, with the layers of yarn Wound on the tube. When the winding operation is completed, the driven roller is moved away from the wound tubeand the rotation of the tube and mandrel is stopped. The wound tube is then unloaded or dofied from the mandrel by releasing the gripping means from contact with the tube and then removing the tube from the mandrel. The mandrels used in the prior art have been diflicult to load and unload and have necessitated many time-consuming operations on the part of the operator in placing the tube on the mandrel, effecting the engagement of the gripping means with the tube, releasing the gripping means and removing the tube from the mandrel.

It is an object of this invention to provide a new and improved mandrel for yarn package supports which will be free from these and other difficulties.

A further object of this invention is the provision of a novel mandrel for yarn tubes which is easily and rapidly loaded and unloaded.

Other objects of this invention will be apparent from the following description and claims.

According to this invention, the mandrel fora yarn tube comprises a member mounted for rotation having gripping means and means for forcing said gripping means into engagement with the yarn tube. The mandrel is also provided with means for holding said forcing means in inoperative position and with means, adapted to be engaged and moved by the yarn tube when said tube is being loaded onto the mandrel, for actuating said holding means to release the same whereby the gripping means may be moved into engagement with the yarn tube to grip the latter firmly.

More particularly the mandrel of this invention comprises a barrel mounted for free rotation on an arbor. Slidably mounted on this barrel is a member having a collar and a tapered resilient skirt which is adapted to be engaged and moved by one end of the yarn tube as Such movement of p the skirt and collar is opposed by a spring mounted the tube is slipped over the barrel.

on the barrel. Also mounted on the barrel is a sleeve having an expansible portion. One end of the sleeve is fixed to the barrel, while the other and expansible end of the sleeveis compose'dof a plurality of fingers provided with roughened'outer surfaces and with inwardly nited States Patent Patented Feb. 7, 1956 directed flanges. These flanges are adapted to be engaged by a cam surface of a cup-shaped cap which is slidably mounted on the barrel. Another spring, mounted on the barrel, pushes the cap in a direction to cause the cam surface to move the flanges outwardly, thus expanding the sleeve and forcing the roughened surfaces of the fingers of the sleeve into gripping engagement with an inner surface of the yarn tube.

When no yarn tube is mounted on the mandrel, the cap is normally maintained in a position in which it is prevented from moving in a direction to expand the sleeve, being locked in this inoperative position by a shoulder at the head end of a rockable lever. When the lever is in its locking position its head end is located in a groove in the cap with its shoulder engaging a shoulder of said groove, which is situated near the rim of the cap. When there is movement of the cap relative to the head end of the lever the shoulder of the groove is adapted to rock the lever out of its locking position by forcing said head end out of the groove and onto the rim of the cap. The lever is retained in its locking position by the engagement of the tail end of the lever with a portion of the slidable collar. When the collar is moved by the yarn tube during the loading operation it is moved away from the tail end of the lever, thereby allowing the lever to rock out of its locking position, thus'permitting the cap spring to push the cap in a direction to expand the expansible sleeve. The construction and arrangement is such that this rocking movement of the lever places the tail end of the lever in front of the free edge of the collar, thereby blocking the tendency for the return of the collar to its original position in response to the action of the collar spring.

The cap is generally mounted to project beyond the free end of the yarn tube, that is, beyond the end of the tube which is engaged by the expansible end of the sleeve, and is provided with another cam surface adapted to engage the head end of the lever and rock the lever into its locking position when the cap is moved manually to its inoperative position. Such rocking of the lever also moves its tail end away from the free edge of the collar, allowing the collar to move and to partially eject the yarn tube from the mandrel. Thus, removal of a fully wound tube from the mandrel requires only a simple continuous motion of one hand of the operator. The hand of the operator, in approaching the end of the tube, engages and pushes the protruding cap inwardly to its inoperative position, thereby releasing the tube from the mandrel and causing one end of the tube to be moved off the mandrel. The operator grasps this end of the tube and slides the tube entirely oif the mandrel.

In the accompanying drawing which illustrates certain preferred embodiments of this invention,

Fig. l is an elevational view, partly in section, showing the position of the parts of the mandrel before the yarn tube is loaded thereon, and

Fig. 2 is an elevational view, partly in section, showing the position of the parts of the mandrel when the yarn tube is loaded thereon.

Like reference numerals indicate like parts in both views of the drawing.

In the drawing, reference numeral 10 indicates generally a rotatable mandrel adapted to support a yarn tube 11, shown in dotted lines, for rotation therewith. In order to place tube 11 on mandrel 10 the tube is slipped overthe mandrel from right to left, as viewed in the drawing. The mandrel 10 comprises a barrel 12 supported for free rotation on an arbor 13 by any suitable means, such as ball bearings 14 and 16 mounted near opposite ends of said barrel. A member 17 is slidably mounted on the barrel 12. This member 17 has an integral collar 18 engaging the barrel and, integral into contact with said yarn tube, and second resilient means adapted to oppose the movement of said releasing means. V

5., In a textile device, a mandrel for receiving a yarn package support, said mandrel including a member rotatable about an axis, gripping means mounted on said rotatable member, resilient means for moving said gripping means into contact with said yarn package support, means for releasably holding said gripping means in inoperative position, and means, movable parallel to said axis and operated by movement of the yarn package supportas it is placed on said mandrel, for releasing said holding means so as to cause said gripping means to move into contact with said yarn tube, said releasing means including a skirt mounted for rotation about said axis and adapted to be engaged and moved axially by one end of said support during said movement of said support.

6. In a textile device, a mandrel for receiving a yarn package support, said mandrel including a member rotatable about an axis, gripping means mounted on said rotatable member, resilient means for moving said gripping means into contact with said yarn package support, means for releasably holding said gripping means in inoperative position, and means, movable parallel to said axis and operated by movement of the yarn package support as it is placed on said mandrel, for releasing said holding means so as to cause said gripping means to move into contact with said yarn tube, said releasing means including a tapered resilient skirt mounted for rotation about said axis and adapted to be engaged and moved axially by one end of said support during said movement of said support.

7. In a textile device, a mandrel for receiving a yarn package support, said mandrel including a rotatable member, gripping means mounted on saidrotatable member, resilient means for moving said gripping means into contact with said yarn package support, means for releasably holding said gripping means in inoperative position, means, operated by movement of the yarn package support as it is placed on said mandrel, for releasing said holding means so as to cause said gripping means to move into contact with said yarn tube, second resilient means adapted to oppose the movement of said releasing means, and manually operable means for restoring said holding means to a position holding said first-mentioned resilient means in inoperative position.

, 8. In a textile device, a mandrel for receiving a yarn package support, said mandrel including a member rotatable about an axis, gripping means mounted on said rotatable member, resilient means for moving said gripping means into contact with said yarn package support, means for releasably holding said gripping means in inoperative position, means, movable parallel to said axis, operated by movement of the yarn package support as it is placed on said mandrel, for releasing said holding means so as to cause said gripping means to move into contact with said yarn tube, second resilient means adapted to oppose the movement of said releasing means, and means, operable by manual movement parallel to said axis, for restoring said holding means to a position holding said first-mentioned resilient means in inoperative position.

9. In a textile device, a mandrel for receiving a yarn package support, said mandrel including a rotatable member, gripping means mounted on said rotatable member, means for forcing said gripping means into engagement with an inner surface of a yarn package support, a spring for operating said forcing means, means for releasably holding said forcing means in inoperative position and means, operated by movement of the yarn package support as it is placed on said mandrel, for releasing said holding means so as to cause said gripping means to move into contact with said yarn tube.

10. In a textile device, a mandrel for receiving a hollow yarn package support, said mandrel including a member rotatable about an axis, an expansible sleeve mounted on said rotatable member, means for forcing said sleeve into engagement with aninner :surface of a yarn package support, a spring for operating said forcing means, means for releasably holding said forcing means in inoperative position and means, engaged and moved parallel to said axis by the yarn package support as said support is placed on said mandrel, for releasing said holding means so as to cause said sleeve to be forced into contact with said yarn tube.

11. In a textile device, a mandrel for receiving a yarn package support, said mandrel including a rotatable member, gripping means mounted on said rotatable member, means for forcing said gripping means into engagement with an inner surface of a yarn package support, a spring for operating said forcing means, locking means having a locking position in which it holds said forcing means inoperative and means for holding said locking means in said locking position, said latter holding means being adapted to be engaged by the yarn package support asit is placed over said mandrel and being movable by said support to a position permitting said locking means to move out of said locking position.

12. In a textile device, a mandrel for receiving a yarn package support, said mandrel including a rotatable member, gripping means mounted on said rotatable member, means for forcing said gripping means into engagement with an inner surface of a yarn package support, a spring for operating said forcing means, locking means having a locking position in which it holds said forcing means inoperative, means for holding said locking means in said locking position, said latter holding means being adapted to be engaged by the yarn package support as it is placed over said mandrel and being movable by said support to a position permitting said locking means to move out of said locking position, and restoring means, operatively. connected to said locking means and said forcing means for returning said locking means to said locking position on movement of said forcing means back to its inoperative position against the urging of said spring.

13. In a textile device, a mandrel for receiving a hollow yarn package support, said mandrel including a member rotatable about an axis, an expansible sleeve mounted on said rotatable member, means for forcing said sleeve into engagement with an inner surface of a yarn package support, a spring for operating saidforcing means, locking means having a locking position in which it holds said forcing means inoperative and means for holding said locking means in said locking position, said latter holding means being movable to a position permitting said locking means to move out of said locking position and compris ing a skirt mountedfor rotation about said axis and adapted to be engaged and moved axially by one end of the yarn package support as said support is placed over said mandrel.

14. In a textile device, a mandrel for receiving a hol- 10W yarn package support, said mandrel comprising an expansible sleeve mounted for rotation about the axis of an arbor, an axially movable cap having a cam surface for expanding one end of said sleeve into engagement with an inner surface of said .hollow support, spring means urging said cap in a direction to expand said sleeve, means for holding said cap in a position inoperative to expand said sleeve, an axially movable skirt adapted to be engaged and moved by the yarn package support as said support is placed on said mandrel, an operative connection between said holding means and said skirt for releasing said holding means on said movement of said skirt, and second resilient means for opposing said movement of said skirt.

15. In a textile device, a mandrel for receiving a hollow yarn package support, said mandrel comprising a rotatable member, gripping means mounted on said rotatable member, a movable cap, having a groove, at the free end of said mandrel, means for forcing said gripping .tion, a pivoted lever having a shoulder engaging said groove in said cap to lock said cap against movement in said direction, the construction and arrangement being such that said lever is tilted out of said locking engagement with said cap by movement of said cap in said direction, and movable means for engaging-said lever and operative to hold said lever in said locking engagement.

16. In a textile device, a mandrel for receiving a hollow yarn package support, said mandrel comprising a rotatable member, gripping means mounted on said member, a cap, having a groove, at the free end of said mandrel, means on said cap for forcing said gripping means into engagement with an inner surface of the yarn package support when said cap is moved in one direction, resilient means for urging said cap in said direction, a pivoted rockable lever having a shoulder engaging said groove in said cap to lock said cap against movement is said direction, the construction and arrangement being such that said lever is tilted out of said locking engagement with said cap by movement of said cap in said direction, movable means for engaging said lever to hold said lever in said locking engagement, a spring forcing said movable means into a position operative to hold said lever in said locking engagement, and abutment means on said lever for engaging said movable means when said movable means is moved out of said operative position and said lever is rocked'out of said locking engagement, said abutment means maintaining said movable means out of said operative position.

17. In' a textile device, a mandrel for receiving a hollow yarn package support, said mandrel comprising gripping means mounted on said member, a cap, having a groove, at the free end of said mandrel, means'on said cap for forcing said gripping means into engagement with an inner surface of the yarn package support when said cap is moved in one direction, resilient means for urging said cap in said direction, a pivoted lever having a shoulder engaging said groove in said cap to lock said cap against movement in said direction, the construction and arrangement being such that said lever is tilted out of said locking engagement with said cap by movement of said cap in said direction, movable means for engaging said lever to hold said lever in said locking engagement, a spring forcing said movable means into a position operative to hold said lever in said locking engagement, abutment means on said lever for engaging said movable means when said movable means is moved out of operative position and said lever is tilted out of said locking engagement, said abutment means maintaining said movable means out of operative position, and cam means on said cap for engaging and tilting said lever back into locking engagement with said cap when said cap is moved in a direction opposite to said first-mentioned direction, thereby moving said abutment means and allowing said movable means to return to said locking position.

18. In a textile device, a mandrel for receiving a hollow yarn package support, said mandrel comprising a rotatable member, gripping means mounted on said member and adapted to be forced into engagement with a yarn package support, movable means adapted to be engaged and moved by the yarn package support as said support is placed on said mandrel, resilient-means opposing said motion of said movable means, means for holding said movable means against the action of said resilient means and an operative connectionbetween said holding means and said gripping means for moving said holding means out of the path of said movable means when said gripping means is disengaged, whereby to permit said resilient means to move said movable means and said support in a direction to eject said suport from said mandrel.

19. In a textile device, a mandrel for receiving a hollow yarn package support, said mandrel comprising a rotatable member, gripping means mounted on said member and adapted to be forced into engagement with an inner surface of a hollow yarn package support, a cap axially movable at the free end of said mandrel, means on said cap for forcing said gripping means into engagement with said support, an axially movable collar mounted for rotation about said axis and adapted to be moved in one direction by the yarn package support as said support is placed on said mandrel, resilient means opposing said motion, means for holding said collar against the action of said resilient means, and an operative connection between said holding means and said cap for moving said holding means out of the path of said collar on axial movement of said cap, whereby to permit said resilient means to move said collar and support in a direction to eject said support from said mandrel.

20. In a textile device, a mandrel for receiving tubular yarn package support, said mandrel comprising a barrel mounted for rotation about the axis of an arbor, an expansible sleeve around said barrel and having one end fixed thereto, a cap, having a groove, coaxial with said barrel and slidably mounted thereon at said free end of said mandrel, said cap having a cam surface for expanding the other end of said expansible sleeve into engagement with an inner surface of said support when said cap is moved in a forcing direction, spring means urging said cap axially in said forcing direction, a pivoted lever mounted on said barrel, said lever having a head end for engaging said groove in said cap to lock said cap against movement in said forcing direction, the construction and arrangement being such that said lever is rocked out of said locking engagement with said cap by movement of said cap in said forcing direction, a tapered resilient skirt adapted to engage and be moved by one end of a tubular yarn package support when said support is placed on said mandrel, a collar slidably mounted on said barrel and attached to said skirt for movement thereby, spring means opposing said movement of said collar, said collar engaging said lever to prevent said lever from rocking out of said locking engagement, the construction and arrangement being such that, when said collar is moved against the action of said spring means said collar is moved away from said lever and said lever is rocked by said movement ofthe cap to block return movement of said collar, and cam means on said cap for engaging and rocking said lever back into locking engagement with said cap when said cap is moved in a direction opposite to said forcing direction.

References Cited in the file of this patent UNITED STATES PATENTS 1,964,585 Larsen June 26, 1934 2,529,185 Proctor Nov. 7, 1950 FOREIGN PATENTS 330,719 Great Britain June 19, 1930 Feb. '7, 1956 c. E. HI TTLE FILM REEL TENSIONING SYSTEM 2 Sheets-Sheet 1 Filed OGt. 15, 1951 IN V EN TOR. BHRL E. HITTLE W ATTflR/VEK 

1. IN A TEXTILE DEVICE, A MANDREL FOR RECEIVING A YARN PACKAGE SUPPORT, SAID MANDREL INCLUDING A ROTATABLE MEMBER, GRIPPING MEANS MOUNTED ON SAID ROTATABLE MEMBER, MEANS FOR MOVING SAID GRIPPINIG MEANS INTO CONTACT WITH SAID YARN PACKAGE SUPPORT, MEANS FOR RELEASABLY HOLDING SAID GRIPPING MEANS IN INOPERATIVE POSITION, AND MEANS, OPERATED BY MOVEMENT OF THE YARN PACKAGE SUPPORT AS IT IS PLACED ON SAID MANDREL, FOR RELEASING SAID HOLDING MEANS SO AS TO CAUSE SAID GRIPPING MEANS TO MOVE INTO CONTACT WITH SAID YARN TUBE. 